Small dogs are especially wicked. I was sometimes hit by dwarf pinchers on the street, after the pinch they flew away and wildly squinted, and their hostesses with their blood-filled eyes and mouth foam had already gone into the attack. It was fun to watch. One grandmother even called for the help of her son, he ran out of the house, looked at me and... left without saying anything :).
One pinscher got pins from me three times, after which he became trained. Usually, as soon as he is released out, he wraps and throws on any first encounter. Once rushed was, once again, and on me (already after the three previous pinks), but I realized, immediately silenced on the halfway and jumped away. I respected it :)